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公开(公告)号:WO2019195589A1
公开(公告)日:2019-10-10
申请号:PCT/US2019/025850
申请日:2019-04-04
Applicant: APPLE INC.
Inventor: PU, Tianyan , ZHANG, Wei , ZENG, Wei , SUN, Haitong , WANG, Ping , ZHANG, Dawei , ALMALFOUH, Sami, M. , SEBENI, Johnson, O. , SU, Li
IPC: H04W74/08
Abstract: An enhanced listen-before-talk procedure may be performed by a device for efficiently accessing and utilizing available resources. The procedure may include specifying input parameter values pertaining to intended wireless communications of the device, adjusting output parameter values based on the input parameter values and an access history of the device, and determining whether to access at least a portion of the wireless communication resources to conduct the wireless communications, based at least on the output parameter values. The output parameter values may pertain to wireless communication resources accessible to the device, and the access history may keep track of wireless communication resource accesses previously made by the device. Input parameter values may include requested channel occupation time, requested frequency resource, requested transmission power, and/or priority and/or urgency of requested transmission, while output parameter values may include energy detection threshold, contention window size, and/or extended clear channel assessment bypass.An enhanced listen-before-talk procedure may be performed by a device for efficiently accessing and utilizing available resources. The procedure may include specifying input parameter values pertaining to intended wireless communications of the device, adjusting output parameter values based on the input parameter values and an access history of the device, and determining whether to access at least a portion of the wireless communication resources to conduct the wireless communications, based at least on the output parameter values. The output parameter values may pertain to wireless communication resources accessible to the device, and the access history may keep track of wireless communication resource accesses previously made by the device. Input parameter values may include requested channel occupation time, requested frequency resource, requested transmission power, and/or priority and/or urgency of requested transmission, while output parameter values may include energy detection threshold, contention window size, and/or extended clear channel assessment bypass.
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公开(公告)号:WO2020029230A1
公开(公告)日:2020-02-13
申请号:PCT/CN2018/099888
申请日:2018-08-10
Applicant: APPLE INC. , ZHANG, Wei
Inventor: ZHANG, Wei , LIM, Junsung , ALMALFOUH, Sami M. , SEBENI, Johnson O. , KIM, Yuchul , ZENG, Wei , SUN, Haitong , ZHAO, Pengkai , WANG, Ping , ZHANG, Dawei , XU, Fangli , CHEN, Yuqin , HU, Haijing
IPC: H04L5/00
Abstract: A device may monitor a first search space (SS) corresponding to an active first component carrier (CC), and detect first control information (CI) that identifies an inactive second CC. In response to receiving the first CI, the device may activate the inactive second CC to make it an active second CC. The device may also set up a second SS corresponding to the active second CC, and may monitor the second SS to schedule the active second CC and receive a physical data channel. The first CI may also include additional scheduling information and a start time for reception of the physical data channel. The device may operate in a first bandwidth part (BWP) according to a first communication configuration associated with the first bandwidth part, and may switch to operating in a second BWP and to operating according to a second communication configuration associated with the second BWP.
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公开(公告)号:EP3629637A1
公开(公告)日:2020-04-01
申请号:EP19200027.1
申请日:2019-09-27
Applicant: Apple Inc.
Inventor: SUN, Haitong , SEBENI, Johnson O. , JI, Zhu , ZHANG, Dawei , ZHANG, Wei , KIM, Yuchul , PU, Tianyan , ZHAO, Pengkai , ZENG, Wei , TANG, Jia , WANG, Ping , ZHANG, Wanping , LI, Yang
Abstract: Apparatuses, systems, and methods for providing maximum transmit power control when utilizing multiple radio access technologies. For example, a wireless communication device comprising two cellular radios may intend to transmit on the first radio, while concurrently transmitting on the second radio. To ensure compliance with a maximum transmit power limitation, the device may determine an allowed transmit power level of the first radio, representing a difference between the maximum transmit power limitation and the current transmit power level being transmitted by the second radio. The device may also determine a threshold power level for a communication by the first radio. If the allowed transmit power level meets the threshold power level, then the device may transmit the first communication having a power level between the threshold power level and the allowed transmit power level. Otherwise, the device may forego transmission of the first communication.
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公开(公告)号:EP3629666A1
公开(公告)日:2020-04-01
申请号:EP19200209.5
申请日:2019-09-27
Applicant: Apple Inc.
Inventor: PU, Tianyan , SUN, Haitong , ZHANG, Wanping , ZENG, Wei , ZHAO, Pengkai , ZHANG, Dawei , ZHANG, Wei , WANG, Ping , ALMALFOUH, Sami M. , SEBENI, Johnson O.
IPC: H04W74/08
Abstract: Apparatuses, systems, and methods for a wireless device to perform methods to implement mechanisms for performing a listen again after talk procedure to detect collisions over an access medium. The wireless device may determine a frequency and configuration of modified transmission frames for transmission over an access medium (licensed or unlicensed) and may further determine a timing of the modified transmission frames within a transmission occasion. The wireless device may detect, during a listening period of the modified transmission frame, a collision and may adjust, based, at least in part, on the detected collision, a remaining transmission schedule for the transmission schedule and/or LBT parameters.
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公开(公告)号:EP3648392A1
公开(公告)日:2020-05-06
申请号:EP19205843.6
申请日:2019-10-29
Applicant: Apple Inc.
Inventor: TANG, Jia , SUN, Haitong , ZHANG, Dawei , KIM, Yuchul , JI, Zhu , ZENG, Wei , ZHANG, Wei , WANG, Ping , VALLATH, Sreevalsan
IPC: H04L5/00
Abstract: A device may obtain, through wireless signaling from a network, a time-domain wireless-resource allocation (TWRA) pattern allocated to the device by the network and corresponding to a future time interval (TTI) for which the device has not yet decoded corresponding control information. This enables the device to conduct wireless communications during the TTI using resources allocated according to the obtained TWRA pattern, without first having to decode control information to identify the TWRA pattern. The device may obtain the TWRA pattern by obtaining an indication from the network that the TWRA pattern remains associated with future wireless communications of the device until indicated otherwise by the network, and/or by transmitting to the network an indication of preferred parameters associated with the future wireless communications and the TWRA pattern, and/or by transmitting to the network a request to have the network change from a different TWRA pattern to the TWRA pattern.
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6.
公开(公告)号:EP3629665A1
公开(公告)日:2020-04-01
申请号:EP19200018.0
申请日:2019-09-27
Applicant: Apple Inc.
Inventor: ZHANG, Wei , ZHAO, Pengkai , ZENG, Wei , SUN, Haitong , ZHANG, Dawei , TANG, Jia , SEBENI, Johnson O. , WANG, Ping , ALMALFOUH, Sami M. , PU, Tianyan
IPC: H04W74/08
Abstract: A device may wirelessly communicate according to a first radio access technology (RAT) within a first bandwidth part (BWP) of a frequency spectrum in which wireless communications according to other RAT(s) also take place. The device may be instructed to operate/communicate within a second BWP of the frequency spectrum responsive to the device successfully completing a listen-before-talk (LBT) procedure within a specified portion of the second BWP, where the second BWP contains the first BWP while the first BWP does not contain the specified portion of the second BWP. The device may also be instructed to operate/communicate within a specified frequency band (SFB) of the frequency spectrum responsive to the device successfully completing an LBT procedure within the SFB, where the SFB is not contiguous with the frequency band that includes the first BWP. The device may then simultaneously operate within the second frequency band and the first frequency band.
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公开(公告)号:EP3537621A1
公开(公告)日:2019-09-11
申请号:EP19153478.3
申请日:2019-01-24
Applicant: Apple Inc.
Inventor: LI, Guoqing , WANG, Ping , KUMAR, Rajneesh , BOODANNAVAR, Veerendra
IPC: H04B7/0452
Abstract: An interface circuit in a recipient electronic device (such as a cellular telephone) may provide preference-indication information for an electronic device (such as an access point). Notably, the recipient electronic device may compute preference-indication information associated with the recipient electronic device, where the preference-indication information indicates whether the recipient electronic device prefers that the electronic device use downlink (DL) multi-user (MU) MIMO transmissions when communicating with the recipient electronic device. Then, the recipient electronic device may provide the preference-indication information in a packet or a frame associated with the electronic device. In some embodiments, the recipient electronic device determines a trigger event (such as measuring a motion indication), and the computing may be selectively performed based at least in part on the trigger event. Moreover, the preference-indication information may include additional information that was used by the recipient electronic device to compute the preference indication of the recipient electronic device.
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公开(公告)号:EP3777440A1
公开(公告)日:2021-02-17
申请号:EP19720728.5
申请日:2019-04-04
Applicant: Apple Inc.
Inventor: PU, Tianyan , ZHANG, Wei , ZENG, Wei , SUN, Haitong , WANG, Ping , ZHANG, Dawei , ALMALFOUH, Sami, M. , SEBENI, Johnson, O. , SU, Li
IPC: H04W74/08
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